tolong jawab yah plis yg mau poin , solanya mU dikumpulin

K = 4*s
68=4(3x+2)
68=12x + 8
68 - 8 = 12x
60=12x
x = 60 : 12
x = 5

Sisi = 3x + 2
= 3(5) + 2
= 15 + 2
= 17

Luas = sisi * sisi
= 17 * 17
= 289

Diagonal²=s²+s²
= 17² + 17²
= 289 + 289
= √578
= 24,04